383 builds for drag car

Step one: determine the budget for the engine.

Step two: decide the performance goal. This will establish a hp target.

Step three: see if step one and two are aligned with each other.

Original Stage 6 heads can have lots of issues.
Have someone carefully look them over before committing them to your plan.

My take on a stock stroke 383 is…….they’re reasonably cost effective up to about 500hp.
For over 500hp, other options start to look more appealing.